<template>
  <div class="cmt-container">
    <h3>发表评论</h3>
    <hr>
    <textarea placeholder="请输入要BB的内容（做多吐槽120字）" maxlength="120" v-model="msg"></textarea>

    <mt-button type="primary" size="large" @click="postComment2">发表评论</mt-button>

    <div class="cmt-list">
      <div class="cmt-item" v-for="(item, i) in comments" :key="item.user_id">
        <div
          class="cmt-title"
        >第{{ i+1 }}楼&nbsp;&nbsp;用户：{{ item.user_name }}&nbsp;&nbsp;发表时间：{{ item.add_time | dateFormat }}</div>
        <div class="cmt-body">{{ item.content === 'undefined' ? '此用户很懒，嘛都没说': item.content }}</div>
      </div>
    </div>

    <mt-button type="danger" size="large" plain @click="getMore">加载更多</mt-button>
  </div>
</template>

<script>
import { Toast } from "mint-ui";
export default {
  data() {
    return {
      pageIndex: 1, // 默认展示第一页数据
      comments: [
        {
          user_id: 11,
          user_name: "6666",
          add_time: new Date(),
          content: "我是真的6"
        },
        {
          user_id: 12,
          user_name: "嘻嘻",
          add_time: new Date(),
          content: "楼上你不行"
        },
        {
          user_id: 13,
          user_name: "77777",
          add_time: new Date(),
          content: "我觉得可以"
        }
      ],
      msg: ""
    };
  },
  created() {
    //国际惯例请求不到直接用假数据
  },
  mounted() {},
  methods: {
    //不用他,请求不到服务器，很伤心，所以用假数据
    getComments() {
      // 获取评论
      // this.$http
      //   .get("api/getcomments/" + this.id + "?pageindex=" + this.pageIndex)
      //   .then(result => {
      //     if (result.body.status === 0) {
      //       // this.comments = result.body.message;
      //       // 每当获取新评论数据的时候，不要把老数据清空覆盖，而是应该以老数据，拼接上新数据
      //       this.comments = this.comments.concat(result.body.message);
      //     } else {
      //       Toast("获取评论失败！");
      //     }
      //   });
    },
    //懒得用那么多数据了
    getMore() {
      // 加载更多
      // this.pageIndex++;
      // this.getComments();
    },
    postComment() {
      this.$http
        .post("api/postcomment/" + this.$route.params.id, {
          content: this.msg.trim()
        })
        .then(function(result) {
          if (result.body.status === 0) {
            var cmt = {
              user_name: "匿名用户",
              add_time: Date.now(),
              content: this.msg.trim()
            };
            this.comments.unshift(cmt);
            this.msg = "";
          }
        });
    },
    //请求不了服务器，所以自己弄个本地的添加上去吧
    postComment2() {
      var cmt = {
        user_name: "匿名用户",
        add_time: Date.now(),
        content: this.msg.trim()
      };
      this.comments.unshift(cmt);
      this.msg = "";
    }
  },
  //这个是从父组件里接受的id，但是我在newsinfo那个页面上根本就没传进来。
  props: ["id"]
};
</script>

<style lang="scss" scoped>
.cmt-container {
  h3 {
    font-size: 18px;
  }
  textarea {
    font-size: 14px;
    height: 85px;
    margin: 0;
  }

  .cmt-list {
    margin: 5px 0;
    .cmt-item {
      font-size: 13px;
      .cmt-title {
        line-height: 30px;
        background-color: #ccc;
      }
      .cmt-body {
        line-height: 35px;
        text-indent: 2em;
      }
    }
  }
}
</style>
